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<arseniiv> learn The password of the month was fought for, and stomped on, but it remains unreconciled with
author HackEso <hackeso@esolangs.org>
date Sun, 01 Mar 2020 00:14:59 +0000
parents d3a12978331a
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Lambek's Lemma, invented by Joachim "Taneb" Lambek, states that initial algebras have inverses. It can be proved with as few as five arrows.